Most clear toy candy makers are seasonal because of mold designs, weather and season demand. Listed here are people that make clear toy candy that is two sided and made in metal molds. I do not consider one sided suckers made in modern plastic molds clear toy candy, though many try to pass it off as clear toy. Clear toy candy should not be flavored and comes in red, green and yellow. 

• Shane Confectionery. Philadelphia PA. Link
• Day Game Candy. St Louis, MO Link
• Schimpff's Confectionery. Jeffersonville, IN Link
• Clear Toy Candy Molds. Slatington, PA.  I sell local at historic events.
• Regennas Candy Shop.  Myerstown, PA Link
•  Keeley's Confections. Sunbury, PA Link   

• Robertson's Candy, Nova Scotia Link. Looks like you can also order their candy from East Coast Catalog 
• Port City Candy. New Brunswick  Link